Wiper arm device

Abstract

A wiper arm device comprising a wiper arm unit which has at least one wiper rod, and comprising at least one nozzle unit which is provided for applying washer fluid onto a vehicle window, and which, in an installed state, is arranged at least substantially laterally on the wiper arm unit. The nozzle unit, in the installed state, is arranged at least substantially as an extension of a wiper rod of the wiper arm unit and is fastened to the wiper arm unit by a latching connection.

What is claimed is: 
     
       1. A wiper arm device comprising a wiper arm unit ( 10   a ;  10   b ;  10   c ;  10   d ;  10   e ;  10   f ;  10   g ;  10   h ;  10   i ;  10   j ;  10   k ) which has at least one wiper rod ( 12   a ), and at least one nozzle unit ( 14   a ;  14   c ;  14   i ) which is provided for applying washer fluid onto a vehicle window, and which, in an installed state, is arranged at least substantially laterally on the wiper arm unit ( 10   a ;  10   b ;  10   c ;  10   d ;  10   e ;  10   f ;  10   g ;  10   h ;  10   i ;  10   j ;  10   k ), characterized in that the at least one nozzle unit ( 14   a ;  14   c ;  14   i ), in an installed state, is arranged at least substantially as an extension of the wiper rod ( 12   a ) of the wiper arm unit ( 10   a ;  10   b ;  10   c ;  10   d ;  10   e ;  10   f ;  10   g ;  10   h ;  10   i ;  10   j ;  10   k ) and is fastened to the wiper arm unit ( 10   a ;  10   b ;  10   c ;  10   d ;  10   e ;  10   f ;  10   g ;  10   h ;  10   i ;  10   j ;  10   k ) by a latching connection, wherein the wiper arm unit includes at least one substantially rigid first holding element ( 20   a ;  20   b ;  20   c ;  20   d ;  20   e ;  20   f ;  20   g ;  20   h ;  20   i ;  20   j ;  20   k ) on which the at least one nozzle unit is fixed in the installed state, and at least one substantially rigid second holding element ( 28   a ;  28   b ;  28   c ;  28   d ;  28   e ;  28   f ;  28   g ;  28   h ;  28   i ;  28   j ;  28   k ) on which the at least one nozzle unit is fixed in the installed state, wherein the at least one second holding element is longitudinally spaced apart from the at least one first holding element along a main direction of extent ( 46   a ;  46   b ;  46   c ;  46   d ;  46   e ;  46   f ;  46   g ;  46   h ;  46   i ;  46   j ;  46   k ) of the wiper rod ( 12   a ), wherein a main plane of extent of the at least one first holding element and a main plane of extent of the at least one second holding element enclose an angle of approximately 90°, wherein the at least one nozzle unit ( 14   a ,  14   c ,  14   i ) has at least two first spring elements ( 38   a ,  40   a ) which are deflected by the at least one first holding element, and between which the at least one first holding element ( 20   a ,  20   b ,  20   c ,  20   d ,  20   e ,  20   f ,  20   g ,  20   h ,  20   i ,  20   j ,  20   k ) is latched in the installed state. 
     
     
       2. The wiper arm device according to  claim 1 , characterized in that the at least one nozzle unit ( 14   a ;  14   c ;  14   i ), in the installed state, is arranged at least substantially outside a side flank ( 16   a ;  16   b ;  16   c ;  16   d ;  16   e ;  16   f ;  16   g ;  16   h ;  16   i ;  16   j ;  16   k ) of the wiper arm unit ( 10   a ;  10   b ;  10   c ;  10   d ;  10   e ;  10   f ;  10   g ;  10   h ;  10   i ;  10   j ;  10   k ). 
     
     
       3. The wiper arm device according to  claim 1 , characterized in that the at least one nozzle unit ( 14   a ;  14   c ;  14   i ) is configured to be installed on the wiper arm unit ( 10   a ;  10   b ;  10   c ;  10   d ;  10   e ;  10   f ;  10   g ;  10   h ;  10   i ;  10   j ;  10   k ) at least by a movement directed in a wiping direction ( 18   a ;  18   b ;  18   c ;  18   d ;  18   i ). 
     
     
       4. The wiper arm device according to  claim 1 , characterized in that the at least one first holding element ( 20   a ;  20   b ;  20   c ;  20   d ;  20   e ;  20   f ;  20   g ;  20   h ;  20   i ;  20   j ;  20   k ) is arranged on an end side ( 22   a ;  22   b ;  22   c ;  22   d ) of the wiper arm unit ( 10   a ;  10   b ;  10   c ;  10   d ;  10   e ;  10   f ;  10   g ;  10   h ;  10   i ;  10   j ;  10   k ). 
     
     
       5. The wiper arm device at least according to  claim 1 , characterized in that the at least one first holding element ( 20   a ;  20   b ;  20   c ;  20   d ;  20   e ;  20   f ;  20   g ;  20   h ;  20   i ;  20   j ;  20   k ) is formed by a first tab ( 24   a ;  24   b ;  24   c ;  24   d ;  24   e ;  24   f ;  24   g ;  24   h ;  24   i ;  24   j ;  24   k ) pointing in a wiping direction ( 18   a ;  18   b ;  18   c ;  18   d ;  18   i ). 
     
     
       6. The wiper arm device at least according to  claim 5 , characterized in that the at least one second holding element ( 28   a ;  28   b ;  28   c ;  28   d ;  28   e ;  28   f ;  28   g ;  28   h ;  28   i ;  28   j ;  28   k ) is formed by a second tab ( 30   a ;  30   b ;  30   c ;  30   d ;  30   e ,  30   f ;  30   g ;  30   h ;  30   i ;  30   j ;  30   k ) pointing in a wiping direction ( 18   a ;  18   b ;  18   c ;  18   d ;  18   i ). 
     
     
       7. The wiper arm device at least according to  claim 1 , characterized in that the at least one first holding element ( 20   a ;  20   b ;  20   c ;  20   d ;  20   e ;  20   f ;  20   g ;  20   h ;  20   i ;  20   j ;  20   k ) has at least one barb ( 26   a ;  26   b ;  26   c ;  26   d ;  26   e ;  26   f ;  26   g ;  26   h ;  26   i ;  26   j ;  26   k ) for securing the at least one nozzle unit ( 14   a ;  14   c ;  14   i ). 
     
     
       8. The wiper arm device according to  claim 1 , characterized in that the at least one second holding element ( 28   a ;  28   b ;  28   c ;  28   d ;  28   e ;  28   f ;  28   g ;  28   h ;  28   i ;  28   j ;  28   k ) is arranged spaced apart from an end side ( 22   a ;  22   b ;  22   c ;  22   d ) of the wiper arm unit ( 10   a ;  10   b ;  10   c ;  10   d ;  10   e ;  10   f ;  10   g ;  10   h ;  10   i ;  10   j ;  10   k ). 
     
     
       9. The wiper arm device at least according to  claim 1 , characterized in that the at least one second holding element ( 28   d ;  28   i ;  28   j ;  28   k ) has at least one barb ( 32   d ;  32   i ;  32   j ;  32   k ) for securing the at least one nozzle unit ( 14   i ). 
     
     
       10. The wiper arm device at least according to  claim 1 , characterized in that the at least one second holding element ( 28   a ;  28   b ;  28   e ;  28   f ) has at least one fastening recess ( 34   a ;  34   b ;  34   e ;  34   f ) for receiving at least one fastening element ( 35   a ) for securing the at least one nozzle unit ( 14   a ). 
     
     
       11. The wiper arm device at least according to  claim 10 , characterized in that the at least one nozzle unit ( 14   a ) has a fastening element ( 35   a ) which, in the installed state, is arranged in the at least one fastening recess ( 34   a ;  34   b ;  34   e ;  34   f ). 
     
     
       12. The wiper arm device at least according to  claim 1 , characterized in that the at least one nozzle unit ( 14   a ;  14   c ;  14   i ) has at least one first recess ( 36   a ) for receiving the at least one first holding element ( 20   a ;  20   b ;  20   c ;  20   d ;  20   e ;  20   f ;  20   g ;  20   h ;  20   i ;  20   j ;  20   k ). 
     
     
       13. The wiper arm device at least according to  claim 12 , characterized in that the at least one nozzle unit ( 14   c ;  14   i ) has at least one second recess ( 37   c ;  37   i ) for receiving the at least one second holding element ( 28   c ;  28   d ;  28   g ;  28   h ;  28   i ;  28   j ;  28   k ). 
     
     
       14. The wiper arm device at least according to  claim 12 , characterized in that the at least one nozzle unit ( 14   a ;  14   c ;  14   i ) has at least one first spring element ( 38   a ,  40   a ) which, in the installed state, is deflected by and is latched to the at least one first holding element ( 20   a ;  20   b ;  20   c ;  20   d ;  20   e ;  20   f ;  20   g ;  20   h ;  20   i ;  20   j ;  20   k ). 
     
     
       15. A wiper arm comprising at least one wiper arm device according to  claim 1 . 
     
     
       16. The wiper arm device at least according to  claim 1 , wherein the at least one nozzle unit has at least two second spring elements ( 62   c ,  64   c ) which are deflected by the at least one second holding element, and between which the at least one second holding element is latched in the installed state. 
     
     
       17. The wiper arm device at least according to  claim 1 , wherein the at least one first holding element and the at least one second holding element both extend laterally along a wiping direction ( 18   a ;  18   b ;  18   c ;  18   d ) such that the at least one nozzle unit is arranged laterally relative to the wiper arm unit along the wiping direction in the installed state, the wiping direction being a direction in which, during an operating state, the wiper arm unit is guided over a vehicle window, the wiping direction being perpendicular to the main direction of extent of the wiper rod. 
     
     
       18. The wiper arm device at least according to  claim 1 , wherein the at least one first holding element and the at least one second holding element are arranged such that the at least one nozzle unit must be moved both along a translational and rotation direction to couple the at least one nozzle unit to the wiper arm unit.